JPH09255152A - Carriage roller driving device of cargo processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and quickly replace a driving carriage roller by another. SOLUTION: A cargo processor is provided for scooping up cargo by moving a reciprocating base 5 back and forth into the layers of cargo piled in stages. For the reciprocating base 5, carriage rollers 10 are provided between a pair of truck side frames 5a and the leading two rollers are rotary-driven in a load scooping-up direction by a driving carriage roller driving device 29. In this driving device 29, a gear provided in a driving carriage roller 10A is engaged with a driving transmitting gear 38 from above. For the driving carriage roller 10A, a bearing 31 is attached/detached to a bearing box 32 opened/closed up and down.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load handling device for picking up a desired number of loads stacked on a pallet or the like and stacking it on another pallet or the like, and more particularly to an improvement of a carriage roller driving device in a carriage thereof. .

[0002]

2. Description of the Related Art Conventionally, a plurality of packages stacked on each pallet may be transferred to another pallet in units of the number of stages. For example, in a canned beverage production plant, cardboard boxes containing canned beverages are stacked in pallets according to the type of beverage, and a desired number of tiers are taken out from these pallets, and various pallets are prepared for each shipping destination.

As a load processing device for taking out each of such steps, the applicant of the present invention runs a carriage between the step-down part and the upper part of the step-loading part to load the goods stacked on the step-down part. It has been proposed that a carriage be inserted between layers to scoop up luggage (for example, Japanese Utility Model Publication No. 7-14266). In the carriage, a plurality of carriage rollers are provided between the carriage side frames, and the leading one or two carriage rollers are rotationally driven in the scooping direction. This drive carriage roller is lined with silicon rubber or the like in order to obtain the scooping force, and the friction coefficient is increased, but the friction coefficient is reduced due to abrasion, and it may be broken by a protrusion on the lower surface of the luggage. . Therefore, it is necessary to be replaceable, and a carriage roller driving device as shown in FIG. 10 is used. In the apparatus shown in the figure, the first two driving carriage rollers 11
0 and 110 are detachably installed together with a bearing (not shown) in a common bearing box 111 that can be opened and closed vertically, and an endless chain 115 is provided between both roller shafts and pulleys 113 and 114 of the output shaft of the motor 112. It hangs and transmits the drive. A tension pulley 116 is provided on the path of the chain 115.

[0004]

When replacing the drive carriage roller 110, the tension of the drive chain 115 is first loosened by adjusting the position of the tension pulley 116, and the chain 115 is removed. After that, the drive carriage roller 110 is removed from the bearing housing 111. As described above, the work of loosening the tension and the work of attaching and detaching the chain 115 are required, so that the work of replacing the drive carriage roller 110 is complicated. Drive carriage roller 1
The replacement of 10 may need to be done when the lining is torn during operation, and in such a case, the time consuming replacement would slow down the entire line flow.
Therefore, prompt replacement is required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a carriage roller driving device for a load handling device in which the driving carriage roller can be replaced easily and quickly.

[0006]

A cargo handling apparatus to which a carriage roller driving device according to the present invention is applied has a step-down section having an elevating table device for placing loads in a stacked state, and a step-down section provided in parallel with the step-down section. And a stacking section having a loading platform, and a plurality of carriage rollers between a pair of carriage side frames, and reciprocating traveling between the lifting platform device of the loading and unloading section and above the loading platform of the stacking section. It is equipped with a possible carriage. The carriage roller driving device is for driving one or a plurality of carriage rollers from the head of the carriage on the step-down section side in the load handling device in the load scooping direction, and has the following configuration. To do. A bearing for supporting the roller shaft protruding from the end portion of the drive carriage roller is provided, and a vertically openable and closable bearing box for accommodating the bearing is provided. Further, a gear is provided on the roller shaft, and the gear is meshed with a drive transmission gear connected to a drive source from above. When the carriage moves to the step-down section, the load handling apparatus having the above-mentioned configuration scoops the load on the uppermost layer onto the carriage roller by the traveling operation and the rotation of the drive carriage roller. The picked-up luggage is transported in the opposite direction of the carriage to the step-down section where it is stacked. To replace the drive carriage roller, open the bearing housing and lift the drive carriage roller. Since the gear of the roller shaft is meshed with the drive transmission gear from above, the meshing of the gears can be engaged or disengaged only by lifting or lowering the drive carriage roller in this manner. Therefore, the drive carriage roller can be easily replaced.

In the above structure, when the number of drive carriage rollers is two, the gears provided on both roller shafts may be meshed with one drive transmission gear. Thus, by engaging one drive transmission gear with the gears of the two roller shafts, drive transmission can be performed to both drive carriage rollers with a simple configuration. Also in this case, by making the gear of the roller shaft mesh with the gear for drive transmission from above, the drive carriage roller can be easily attached / detached without requiring special engagement / disengagement operation of the drive transmission system. The bearings that support the roller shafts of both drive carriage rollers are housed in a common bearing box. As a result, the two drive carriage rollers can be attached and detached at the same time.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS. The overall outline will be described with reference to FIG. In this load handling apparatus, a step-down unit 1 and a step-stacking unit 2 are arranged side by side, and a carriage 5 that travels back and forth on a rail 4 of a main body frame 3 is provided between them. The unloading unit 1 includes a carry-in conveyor 6 for carrying in pallets P1 on which loads W are stacked, and a lifting device for lifting the carried pallets P1 and sequentially lifting the loads W on each stage to the level of the carriage 5. 7 and 7. The stacking unit 2 is provided with a lifting platform device 9 which is a loading platform and an unloading conveyor 8. An empty pallet P2 is placed on the lifting platform device 9 and the loading and unloading unit 2 is used by the carriage 5. Loaded luggage is loaded. The carriage 5 has a large number of carriage rollers 10 that form a roller conveyor, and scoops the cargo W one step at a time at the step-down section 1 and lowers it to the stacking section 2.

On the upper part of the step-down unit 1, when scooping by the carriage 5, the uppermost-stage load W is sandwiched and the scooping aligning device 1 is sandwiched.
1 and a clamp device 12 for sandwiching the luggage W at the second stage from the top. The scooping alignment device 11 includes the step-down unit 1.
The upper stopper 13 is provided at a position opposite to the carriage entry side, and the shutter 14 is provided at the carriage entry side. The clamp device 12 is composed of a lower stopper 15 provided below the upper stopper 13 and a stopper 16 located below the shutter 14. The stopper 16 serves as a pusher. Above the stacking unit 2, a scrubbing alignment device 19 including a stopper 17 and a shutter 18 is provided.

Next, details of each section will be described. The lifting platform devices 7 and 9 of the step-down unit 1 and the stacking unit 2 are the guide columns 2.
Elevating arms 22 and 23 for elevating along 0 and 20 are provided in parallel, and elevating and lowering drive devices 21 and 21 for elevating and lowering these elevating arms 22 and 23 by a motor via a hanging rope or a ball screw are provided. It is a thing. Step down section 1
Carry-in conveyor 6 and carry-out conveyor 8 of stacking section 2
Each comprises a chain conveyor, and the chain path is depressed downward in a U-shape (not shown) so that the lifting arms 22 and 23 of the lifting platform devices 7 and 9 can respectively sink. Is provided.

As shown in FIGS. 2 and 3, the carriage 5 has a large number of carriage rollers 10 mounted between a pair of carriage side frames 5a, 5a, and each carriage side frame 5a is
Rails 4 provided on the two upper frame members 3a of the main body frame 3
In addition, it is installed so as to be able to move back and forth through a running guide 24 such as a linear motion bearing or wheels. A rack 25 is provided on the main body frame 3 along each rail 4, and a self-propelled traveling device 28 including a pair of pinions 26 (FIG. 2) meshing with the rack 25 and a motor 27 with a speed reducer is used as a trolley. It is mounted on the side frame 5a. The pinions 26, 26 on both sides are
They are connected to each other by a rotating shaft 26a.

Of the carriage rollers 10 of the carriage 5,
The first two carriage rollers 10A on the step-down unit 1 side
Is a carriage roller driving device 2 mounted on the carriage 5.
9 is a driving carriage roller that is rotationally driven.
Further, on the rear end side of the arrangement of the carriage rollers 10, a plate-like chute 30 having an upper surface descending and inclined is provided.
It is attached across a and 5a. As shown in FIG. 3B, each of the non-driving carriage rollers 10 has a metal roller body 10a made of iron or the like with a resin coating 10b on its surface. An elastic resin tube such as vinyl chloride is used for the resin coating 10b, and the resin coating 10b is covered with the roller body 10a and then contracted by heating or the like to be attached to the roller body 10a. A coating layer of fluororesin such as tetrafluoroethylene resin is formed as a resin coating on the chute 30 only or on the entire surface. It should be noted that, except for the drive carriage roller 10A, it is preferable that the carriage 5 be covered with a resin coating on all the places that may come into contact with the bottom surface of the luggage W, for example, the upper surface and the inner side surface of the carriage side frame 5a. The drive carriage roller 10A is made of metal such as iron, and its surface is provided with a non-slip coating such as silicon rubber. This coating also
As a stretchable tube, it is attached by heat shrinkage or the like.
In the illustrated example, the coating of the drive carriage roller 10A is
It is divided into a plurality in the longitudinal direction.

The carriage roller driving device 29 is composed of a bearing portion 29A and a driving portion 29B as shown in FIGS. The bearing portion 29A is formed by attaching bearings 31 to the roller shafts 10c projecting from the end portions of the respective drive carriage rollers 10A, and accommodating these bearings 31 in a common bearing box 32 through which both roller shafts 10c pass. Bearing box 32
Is mounted on a mounting base 33 provided on the trolley-side frame 5a, and is divided into two parts vertically by a horizontal dividing surface, and a fitting concave portion 34 of the bearing 31 is provided on the dividing surface. Bearing box 32
Is a stopper 36 which can be opened and closed vertically around the support shaft 35 and which is provided at the tip of the lower split bearing box so as to be tiltable and rotatable.
Is held in the closed state by engaging with the concave portion at the tip of the upper split bearing box and tightening with the screw portion of the stopper 36. The reference numeral 5c in the figure indicates a connecting member for connecting the bogie side frames 5a on both sides. The drive unit 29B of the carriage roller drive device 29 is provided with a gear 37 at the tip of each roller shaft 10c protruding from the bearing box 32, and these gears 37 are meshed with a common drive transmission gear 38 from above. . The drive transmission gear 38 is rotatably supported by the mount 33, and meshes with the output gear 40 of the drive source 39 obliquely downward. The drive source 39 is composed of a motor 41 provided with a speed reducer 42, and the speed reducer 42 has an output shaft orthogonal to the motor shaft.

FIG. 4 shows the scooping alignment device 11 and the clamp device 12 in the step-down unit 1. Aligning device for scooping 1
The upper stopper 13 of No. 1 and the lower stopper 15 of the clamp device 12 are movably supported by guide members 46 and 47 such as slide bearings via a plurality of guide rods 44 and 45 protruding to the back surface, respectively. It is driven back and forth by forward and backward drive devices 48 and 49 such as cylinders. The guide members 46, 47 and the advancing / retreating drive devices 48, 49 are installed on the installation base 43 of the main body frame 3 via an appropriate mount.

The shutter 14 is attached to the lower end of a vertical shaft 52 which is supported on the advancing / retreating member 50 through a guide member 51 such as a slide bearing so as to be able to move up and down, and is moved up and down by a shutter opening / closing device 53. The advancing / retreating member 50 is
In the shutter support frame 60 installed on the main body frame 3,
It is installed so as to be able to move forward and backward through a guide rod 54 and a guide member 55 such as a slide bearing, and is driven forward and backward by a shutter forward and backward device 56 such as a cylinder.

The stopper 16 on the carriage entry side of the clamp device 12 is divided into a plurality of unit stoppers 16a to 16c arranged in a direction orthogonal to the carriage traveling direction, and the unit stoppers 16a to 16c are individually advanced and retracted. A stopper advancing / retreating device 57 is provided. Each unit stopper 16a to 16c
Has a plurality of guide rods 58 protruding from the back surface, and is supported so as to be able to move back and forth through the guide rods 58 and guide members 59 such as slide bearings.
The unit stopper advancing / retreating device 57 is composed of a cylinder and is arranged between the guide rods 58 on both sides. The unit stopper advancing / retreating device 57 and the guide member 59 are installed on the main body frame 3. Each unit stopper advancing / retreating device 57 is a rod-shaped member extending in the arranging direction, and a cushion member is attached to the luggage contact surface.

The shutter 18 of the stacking section 2 in FIG.
4 is moved up and down by the shutter opening / closing device 61 and moved forward / backward by the shutter advancing / retracting device 62, similarly to the shutter 14 on the step-down section side in FIG. In addition, the stopper 1 of the stacking section 2
7 is advanced and retracted by a stopper advancing and retracting device 63 including a cylinder or the like.

The operation of the above configuration will be described. The load W on the pallet P1 on the side of the step-down unit 1 in FIG. 1 is, for example, a cardboard box that stores canned beverages, and the load W is placed on a conveyor (not shown) preceding the conveyor 6 by type. A plurality of pallets P1 are sequentially arranged and made to stand by. The layers of the stacked packages W are adhered to each other with a hot-melt adhesive (not shown) so that the packages do not collapse during transportation. The pallet P2 on the stacking unit 2 side is a pallet prepared for each shipping destination.

As shown in FIG. 6 (A), when the stacked pallets P1 are conveyed by the carry-in conveyor 6 to the predetermined position of the stacking section 1, the carry-in conveyor 6 is stopped and the lift table device 7 is operated. Raise to lift the pallet P1 of the carry-in conveyor 6. When the uppermost luggage W reaches the height of the carriage 5 as shown by the chain line, the lifting of the lifting platform device 7 stops. After this stop, as shown in FIG. 6B, the upper stopper 13 of the scooping alignment device 11 and the lower stopper 15 of the clamp device 12 are scooped.
Moves forward to a predetermined position where it hits the luggage W, the shutter 14 descends to the closed position and moves forward, and the clamp device 12
The pusher side stopper 16 moves forward. This allows
The uppermost load W is sandwiched between the upper stopper 13 and the shutter 14, and the second load W from the top is clamped by the clamp device 12.
It is sandwiched between the lower stopper 15 and the pusher side stopper 16.

In the clamped state as described above, the carriage 5 waiting on the stacking section 2 side travels to the stacking section 1 side while rotating the leading drive carriage roller 10A upward. When the drive carriage roller 10A hits the side surface of the uppermost load W, the frictional force due to the rotation of the drive W causes the load W to move.
Are picked up and placed on the carriage 5 as the carriage 5 travels (FIG. 6 (C)). Since the uppermost luggage W is sandwiched by the aligning device 11 during scooping, the luggage W is not pushed by the carriage 5 and escapes, or the packing appearance does not collapse. At the time of scooping up, the adhesive that adheres the layers of the luggage W is peeled off and rubbed against each carriage roller 10 and each part of the carriage 5, but the carriage roller 10 and the chute 30
Is covered with a resin coating 10b or a coating layer of a fluororesin, the adhesive property prevents the adhesive from adhering to the carriage roller 10 or the like due to the property of the resin. Therefore, the frequency of cleaning or replacement of the carriage roller 10, chute 30, etc. can be reduced.

Further, when the luggage W is picked up by the carriage 5, the second-stage luggage W, which is the lower layer of the scooping layer, is sandwiched by the clamp device 12, so that the load does not collapse. Further, it is prevented that the position and the posture of the second-stage luggage W are disturbed and the entrance of the carriage 5 is hindered, and the scooping is performed smoothly. Since the pusher-side stopper 16 of the clamp device 12 is divided into a plurality of parts, the stopper 16 shown in FIG.
Even when there is a gap d between the loads W in some rows as shown in FIG. 7A, as shown in FIG.
The loads W are clamped for each row at 6a to 16c, and are clamped without a gap. Therefore, a reliable clamp can be performed,
The carriage 5 can smoothly pick up the luggage W. Further, not only when there is a gap between the loads W, but also when the lengths of the rows of the loads W are different, by pushing the loads W for each row by the split stoppers 16a to 16c, A reliable clamp can be performed.

After the luggage W has been scooped up by the carriage 5, the upper stopper 13 of the aligning device 11 at the time of scooping retracts and the shutter 14 retracts to the upper position as shown in FIG. 7 (A). The carriage 5 opens and runs backward to the stacking unit 2 side. Further, the lower stopper 15 and the pusher-side stopper 16 of the clamp device 12 are retracted to release the clamp and prepare for the next lifting of the load W. When the carriage 5 travels to a predetermined position on the stacking unit 2, the dismounting and aligning device 1 is stopped after traveling.
The luggage W on the carriage 5 is sandwiched by the shutter 18 and the stopper 17 of 9 (FIG. 7B). In this state, the carriage 5 passes under the shutter 18 and travels toward the step-down unit 1, so that the cargo W on the carriage 5 is stopped by the stopper 17 and is discharged onto the pallet P2. While the carriage 5 is located in the stacking section 2, the lifting platform device 7 is raised by one stage of the load W at the stacking section 1, and the scooping aligning device 11 and the clamping device 12 are operated in the same manner as described above. Stand by with the luggage W in between. Therefore, when the carriage 5 travels to the step-down unit 1 side for the purpose of clearing the luggage W, by continuing the traveling as it is, the next-stage package W of the step-down unit 1 is loaded.
Are picked up by the carriage 5 (Fig. 7 (C)).

In this way, the carriage 5 is reciprocated to take out the load W of the desired number of stages of the pallet P1 of the step-down unit 1.
The pallets P2 of the stacking unit 2 are stacked. The excess cargo W in the step-down unit 1 is unloaded from the lifting platform device 7 onto the carry-in conveyor 6 together with the pallet P1 and carried out from the subsequent conveyor (not shown).

When the anti-slip coating of the drive carriage roller 10A of the carriage 5 is worn or damaged during the operation, the bearing box 32 is opened as shown in FIG. Remove from the bearing box 32. In this detached state, the anti-slip coating is replaced, or the drive carriage roller 10A and the bearing 31 are replaced with new ones. Replaced drive carriage roller 10A
Inserts the bearing 31 into the bearing box 32, closes the bearing box 32, and tightens the fastener 36 (FIG. 9B). In this way, when the drive carriage roller 10A is replaced, power is transmitted to the drive carriage roller 10A by the gear 37, and the gear 37 is engaged with the drive transmission gear 38 from above.
The drive transmission system can be disconnected or reconnected at the same time simply by lifting or lowering. Therefore, the replacement work of the drive carriage roller 10A becomes simpler than the conventional one in which drive is transmitted to the drive carriage roller using a chain. Therefore, the operation rate of the load handling apparatus is improved, and even when the anti-slip coating of the drive carriage roller 10A is suddenly broken during operation, the drive carriage roller 10A is immediately replaced to minimize the stagnation of the line. Can be suppressed.

In the above embodiment, the drive transmission gear 3 is used.
Although 8 is set to mesh with the output gear of the drive source 39, the drive transmission gear 38 may be the output gear of the drive source 39. Further, in the above-described embodiment, the stacking unit 2 uses the lifting platform device 9 as a loading platform and stacks it on the pallet P2, but the loading platform may be a conveyor, a carriage, or the like.

[0026]

Since the carriage roller drive device of the load handling apparatus of the present invention has a structure in which the gear of the roller shaft is meshed with the drive transmission gear from above, the drive carriage does not need to be engaged or disengaged from the drive transmission system. The rollers can be replaced,
Exchange work can be done easily and quickly. Even when two drive carriage rollers are provided, by engaging the gears of the roller shafts of both drive carriage rollers with the drive transmission gears from above, a drive transmission system with a simple structure can be obtained, and the drive carriage rollers can be replaced. Easy to do. Further, the bearings of the roller shafts of both drive carriage rollers are housed in a common bearing box that can be opened and closed vertically, so that the two drive carriage rollers can be attached and detached at the same time. With this configuration,
By combining with the structure in which the gear of the drive roller shaft is meshed with the drive transmission gear from above, it is possible to realize a carriage roller drive device in which the replacement of the drive carriage roller is very easy and the structure is simple.

[Brief description of drawings]

FIG. 1 is an overall front view of a load processing device including a carriage roller driving device according to an embodiment of the present invention.

FIG. 2 is a plan view of the package processing apparatus.

FIG. 3A is a perspective view showing a carriage and a traveling guide system of the same cargo handling apparatus, and FIG. 3B is a partially enlarged cutaway perspective view of a carriage roller thereof.

FIG. 4A is a perspective view showing a clamp device and each stopper of the load handling device, and FIG. 4B is a plan view showing a split stopper of the clamp device and its peripheral portion.

5A is a plan view showing a carriage roller driving device of a load handling device, FIG. 5B is a side view of the same part, and FIG. 5C is a cutaway side view of the same part.

FIG. 6 is an operation explanatory view of the load processing device.

FIG. 7 is an explanatory diagram of the operation of the load processing device subsequent to FIG. 6;

FIG. 8 is an operation explanatory view of a clamp device in the same load processing device.

FIG. 9A is an enlarged perspective view showing an opened state of the bearing box of the carriage roller driving device, and FIG. 9B is a partial perspective view showing the closed state of the bearing box.

FIG. 10 is a perspective view of a conventional example.

[Explanation of symbols]

1 ... Stacking part, 2 ... Stacking part, 3 ... Main body frame, 5 ...
Carriage 5a, side frame of carriage, 7 ... Lifting platform device, 9 ... Lifting platform device (loading platform), 10 ... Carriage roller, 10A ...
Drive carriage roller, 29 ... Carriage roller drive device, 29A ... Bearing portion, 29B ... Drive portion, 31 ... Bearing, 3
2 ... Bearing box, 34 ... Fitting recess, 35 ... Support shaft, 36 ... Stopper, 37 ... Gear, 38 ... Drive transmission gear, 39 ... Drive source, 40 ... Output gear, 41 ... Motor, 42 ... Reducer , P
1, P2 ... pallet, W ... luggage

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koichi Nishi Nishi 1-2-3 Moto-Akasaka, Minato-ku, Tokyo Suntory Ltd. Tokyo branch office

Claims (2)

[Claims] 1. A step-down section having a lifting platform device for loading loads in a stacked state, a step-stacking section having a loading platform arranged in parallel with the step-down section, and between a pair of bogie side frames. In the load processing device having a plurality of carriage rollers, the lift device of the step-down part and the carriage capable of reciprocating between the upper part of the load table of the stacking part, the step of the carriage. A carriage roller drive device for rotatably driving one or a plurality of carriage rollers from the top on the drop-off side in the direction of picking up a load, wherein a bearing for supporting a roller shaft protruding from an end of the drive carriage roller is provided, An upper and lower bearing box for detachably accommodating the bearing is provided, a gear is provided on the roller shaft, and the gear is meshed with a drive transmission gear connected to a drive source from above. Carriage roller for load handling equipment Drive. 2. The number of carriage rollers that are driven to rotate is two.
Bearings for supporting the roller shafts of these carriage rollers are housed in a common bearing box, gears are provided on the two roller shafts, and one drive transmission gear is used for the two roller shafts. The carriage roller driving device of the load handling device according to claim 1, which is engaged with the.